When you get a ClickLearn Attain license, you receive an email from the ClickLearn providing you with a download link for ClickLearn Attain, and your Attain credentials.
You can also download the ClickOnce installation of ClickLearn Attain from here.
ClickLearn Attain is also available as an MSI installer. To get the MSI installer, please follow this guide.
You can download the legacy version ClickLearn Classic from here.
Learn more:

